Protective slug.



No. 889,383. PATBNTED JUNE 2, 1908.

S. D. LBLAND.

PROTECTIVE SLUG.

APPLIOATION FILED JAN. 1a, 1902.

me NoRRzs PETERS ca.. wAsmNaroN. D. c.

companying drawings, is a specification, like A as the heels and solesof boots and shoes, for

UNITED nSTATES PATENT OFFICE.

SANFORD D. LELAND, OF WINCHESTER, MASSACHUSETTS, ASSIGNOR TO UNITED SHOEMACHINERY GOMFANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF NEWJERSEY.

PROTECTIVE SLUG.

Application filed January 18, 1902.

To all whom it may concern:

Be it known that I, SANFORD D. LELAND, a citizen of the United States,residing at Winchester, in the county of Middlesex and State ofMassachusetts, have invented an Improvement in Protective Slugs, ofwhich the following description, in connection with the acletters on thedrawings representing like parts.

This invention consists of a novel protective slug adapted to be driveninto stock such the purpose of resisting wear or for ornamentation, orfor both of said purposes.

The novel protective slug to be herein described and claimed comprises ahead shaped to embrace the stock and a shank depending from the headmidway its ends, said shank being in excess of the height of the head atits ends. The ends of the head are of equal length from the center lineof the shank, and said ends are tapered toward the shank to aid indriving the slugs into the stock.

By the expression shaped to inclose stock in the specification andclaims l mean that the protector is so shaped that when it is in thestock a portion of the stock is between the ends of the head.

Figures 1, 2 and 3 show respectively side elevations and a top or planview of my protective slug enlarged; Fig. 4 shows some of my protectiveslugs driven into the heel, 5 a section in the line fr, Fig. 4, and Fig.6 shows the blank from which my protective slug is formed.

Referring to Figs. l to 4 inclusive, b represents the head of my novelprotector, andc its shank. The shank depends, as shown, centrally fromthe underside of the head, and the inner and outerfaces of the shank arepreferably in line with the inner and outer faces of the headimmediately above said shank and in line therewith. The shank is of alength preferably in excess of the depth of the head, and preferably thesides of the shank are beveled outwardly toward the underside of thehead, as at d, Fig. 2, to aid the head in cutting its way through thestock as the protector is being driven therein.

To facilitate the driving of the protector into the stock and insurethat the opening made at the surface of the stock in the operation ofdriving a protector shall be completely filled when the protector isAfully l Specification of Letters Patent.

Patented June 2, 1908.

Serial No. 90,237.

f driven, the ends of the head are inclined with relation to thelongitudinal center of the shank, so ,that as the protector is driventhe ends of the head act to cut the stock for the reception of the head.This beveled surface also assists in holding the top lift on the heeFig. 4 shows several protectors driven into the stock with the upperends of the heads arranged in a curved line to insure a symmetricalappearance for the `driven slugs.

Fig. 5 shows the Shanks of the slugs driven through a plurality oflayers of stock below that in which the head itself is driven, thisbeing the manner in which the protectors will preferably be driven intoheels. This long shank is of great utility in holding the protectorfirmly in position and will secure this purpose even after most or allof the head is worn off. This shank also greatly facilitates thehandling of the protectors in the machine which is employed' to drivethem.

In the formation of protective slugs embodying my invention I prefer totake sheet metal, and by any suitable devices punch or cut therefromblanks such as shown at a, Fig. 6, the blank being preferably of uniformthickness throughout, although such uniformity is not essential tomyinvention. This blank is acted upon by a suitable tool to bend orcurve the head more or less so that when the slug is driven into thestock the head will inclose portions of the stock, and it will beunderstood that the degree or extent of curvature of the head may bevaried and yet be within the scope of my invention.

I am aware that it has been proposed to construct a protector from astrip ofsheet metal by cutting into one edge of the strip at each sidethe center of the length thereof notches at two places, thus removingportions of the stock and leaving three prongs, one midway the ends ofthe strip and one at each end of the strip, said prongs being all of thesame length. The notches made in the underside of the strip are curvedsharply from the middle of the length of the protector towards itsopposite ends where the curve is inturned, and thereafter the inner edgeof the end prongs is beveled outwardly toward the end of the strip. Theprotectors referred to are then bent into S-shape, leaving the endprongs substantially parallel and the middle prong curved. Such aprotector does not present the shank that constitutes the chiefessential novel feature of the protector herein to be claimed.

Having described my invention, What I claim and desire to secure byLetters Patent 1sz 1. A protective slug comprising a head and acentrally depending shank, a portion of the head being substantially inthe verticalplane ofthe shank, said head being curved from substantiallythey median line of the shank to its ends to present a contracted mouthopposite one side of the shank.

2. A protective slug, comprising a head and a centrally depending shankolD uniform thickness, a portion of the head being substantially in thevertical plane of the shank,

said shank being in excess of the height of the head, said head beingcurved from substantially the median line of the shank to its ends topresent a contracted mouth opposite one side of the shank, the ends ofthe curved parts of the head being inclined in the same direction fromthe vertical plane of the shank and occupying positions at the same side'of said shank.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing Witnesses.

SANFORD D. LELAN D.

Witnesses:

NELSON W. HOWARD, BERTHA L. HANNAH.

